how do you set default value of a column to value of another column?
I have 2 columns in an input form that I want to be same value while inserted. For example, one is product_date and another is processed_date. The processed_date is hidden. If user sets product_date to 5/1/2012, I like processed_date to be 5/1/2012 as well while the row is inserted. How do I set the default value of processed_date to point to product_date?
thanks..
Roland Yee
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